What Causes the Windshield to Not Be Cleaned Properly?
2 Answers
The reasons why the windshield cannot be cleaned properly are: 1. The wiper blades are aged; 2. The glass surface is corroded. A wiper is a blade structure installed in front of the windshield, composed of a motor, reducer, four-link mechanism, wiper arm spindle, and wiper blade assembly. Its function is to remove rain, snow, and dust that obstruct the view on the windshield. The method for removing and installing the wiper is: 1. Lift the metal wiper arm from the windshield and keep it stable in a position perpendicular to the windshield; 2. Press the buckle to remove the old wiper blade, separate it from the metal arm, then insert the new wiper and rotate it until the hook snaps into place and is secured; 3. Place the wiper back onto the windshield.
I've been driving for over ten years and have seen plenty of issues with windshield wipers not cleaning properly. Most of the time, it's due to aging or deformed wiper blades, where the rubber hardens or cracks, causing the wipers to skip and leave streaks or blurry spots. Sometimes, an oily film builds up on the glass—especially after highway driving or rain—where tire spray deposits grease and bug residue, making reflections more hazy under sunlight. Uneven pressure or misalignment of the wiper arms, or loose springs, can also lead to uneven wiping. Another common issue is when the washer fluid is too diluted or nearly empty, leaving the windshield foggy and uncleaned. I make it a habit to replace wiper blades every six months, opting for high-quality ones that last longer. For daily cleaning, I use dedicated glass cleaner to remove stubborn stains. In winter, I avoid scraping frozen areas forcefully to prevent damage. Taking care of these small details ensures clear visibility and safer driving—no one wants an accident from poor visibility.
